Free-standing porous carbon electrodes derived from wood for high-performance Li-O2 battery applications
Porous carbon materials are widely used in particulate forms for energy applications such as fuel cells, batteries, and （super） capacitors. To better hold the particles together, polymeric additives are utilized as binders, which not only increase the weight and volume of the devices, but also cause...
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| Veröffentlicht in: | Nano research 2017-12, Vol.10 (12), p.4318-4326 |
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| creator | Luo, Jingru Yao, Xiahui Yang, Lei Han, Yang Chen, Liao Geng, Xiumei Vattipalli, Vivek Dong, Qi Fan, Wei Wang, Dunwei Zhu, Hongli |
| description | Porous carbon materials are widely used in particulate forms for energy applications such as fuel cells, batteries, and （super） capacitors. To better hold the particles together, polymeric additives are utilized as binders, which not only increase the weight and volume of the devices, but also cause adverse side effects. We developed a wood-derived, free-standing porous carbon electrode and successfully applied it as a cathode in Li-O2 batteries. The spontaneously formed hierarchical porous structure exhibits good performance in facilitating the mass transport and hosting the discharge products of Li202. Heteroatom （N） doping further improves the catalytic activity of the carbon cathode with lower overpotential and higher capacity. Overall, the Li-O2 battery based on the new carbon cathode affords a stable energy efficiency of 65% and can be operated for 20 cycles at a discharge depth of 70%. The wood-derived free-standing carbon represents a new, unique structure for energy applications. |
| doi_str_mv | 10.1007/s12274-017-1660-x |
| format | Article |
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To better hold the particles together, polymeric additives are utilized as binders, which not only increase the weight and volume of the devices, but also cause adverse side effects. We developed a wood-derived, free-standing porous carbon electrode and successfully applied it as a cathode in Li-O2 batteries. The spontaneously formed hierarchical porous structure exhibits good performance in facilitating the mass transport and hosting the discharge products of Li202. Heteroatom （N） doping further improves the catalytic activity of the carbon cathode with lower overpotential and higher capacity. Overall, the Li-O2 battery based on the new carbon cathode affords a stable energy efficiency of 65% and can be operated for 20 cycles at a discharge depth of 70%. The wood-derived free-standing carbon represents a new, unique structure for energy applications.</description><identifier>ISSN: 1998-0124</identifier><identifier>EISSN: 1998-0000</identifier><identifier>DOI: 10.1007/s12274-017-1660-x</identifier><language>eng</language><publisher>Beijing: Tsinghua University Press</publisher><subject>Additives ; Atomic/Molecular Structure and Spectra ; Batteries ; Binders ; Biomedicine ; Biotechnology ; Carbon ; Catalysis ; Catalytic activity ; Cathodes ; Chemistry and Materials Science ; Condensed Matter Physics ; Discharge ; Electrodes ; Energy efficiency ; Mass transport ; Materials Science ; Metal air batteries ; Nanotechnology ; Porous materials ; Research Article ; Side effects ; Structural hierarchy</subject><ispartof>Nano research, 2017-12, Vol.10 (12), p.4318-4326</ispartof><rights>Tsinghua University Press and Springer-Verlag GmbH Germany 2017</rights><rights>Nano Research is a copyright of Springer, (2017). All Rights Reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c409t-44b9c6ef0e7f784d2a08c65d133008f74c04aad1270a7b7fa9db86573cd2b0063</citedby><cites>FETCH-LOGICAL-c409t-44b9c6ef0e7f784d2a08c65d133008f74c04aad1270a7b7fa9db86573cd2b0063</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Uhttp://image.cqvip.com/vip1000/qk/71233X/71233X.jpg</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s12274-017-1660-x$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s12274-017-1660-x$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,776,780,27901,27902,41464,42533,51294</link.rule.ids></links><search><creatorcontrib>Luo, Jingru</creatorcontrib><creatorcontrib>Yao, Xiahui</creatorcontrib><creatorcontrib>Yang, Lei</creatorcontrib><creatorcontrib>Han, Yang</creatorcontrib><creatorcontrib>Chen, Liao</creatorcontrib><creatorcontrib>Geng, Xiumei</creatorcontrib><creatorcontrib>Vattipalli, Vivek</creatorcontrib><creatorcontrib>Dong, Qi</creatorcontrib><creatorcontrib>Fan, Wei</creatorcontrib><creatorcontrib>Wang, Dunwei</creatorcontrib><creatorcontrib>Zhu, Hongli</creatorcontrib><title>Free-standing porous carbon electrodes derived from wood for high-performance Li-O2 battery applications</title><title>Nano research</title><addtitle>Nano Res</addtitle><addtitle>Nano Research</addtitle><description>Porous carbon materials are widely used in particulate forms for energy applications such as fuel cells, batteries, and （super） capacitors. 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To better hold the particles together, polymeric additives are utilized as binders, which not only increase the weight and volume of the devices, but also cause adverse side effects. We developed a wood-derived, free-standing porous carbon electrode and successfully applied it as a cathode in Li-O2 batteries. The spontaneously formed hierarchical porous structure exhibits good performance in facilitating the mass transport and hosting the discharge products of Li202. Heteroatom （N） doping further improves the catalytic activity of the carbon cathode with lower overpotential and higher capacity. Overall, the Li-O2 battery based on the new carbon cathode affords a stable energy efficiency of 65% and can be operated for 20 cycles at a discharge depth of 70%. 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| fulltext | fulltext |
| identifier | ISSN: 1998-0124 |
| ispartof | Nano research, 2017-12, Vol.10 (12), p.4318-4326 |
| issn | 1998-0124 1998-0000 |
| language | eng |
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| source | Springer Nature - Complete Springer Journals |
| subjects | Additives Atomic/Molecular Structure and Spectra Batteries Binders Biomedicine Biotechnology Carbon Catalysis Catalytic activity Cathodes Chemistry and Materials Science Condensed Matter Physics Discharge Electrodes Energy efficiency Mass transport Materials Science Metal air batteries Nanotechnology Porous materials Research Article Side effects Structural hierarchy |
| title | Free-standing porous carbon electrodes derived from wood for high-performance Li-O2 battery applications |
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